I picked this up in a jumble sale and now use it to teach myself the A level maths I never did at school. I greatly admire the sparse text that says exactly what it means and what you need to know without any flannel, meaning that you can read it and look things up quickly and easily. You also learn what is needed in maths: to focus exactly on what is meant. I disagree with those who say the book is hard. Each step of the reasoning is explained by Bostock and Chandler, unlike some maths authors who believe that students have some kind of moral duty to work out certain essential steps for themselves as if they have nothing else to think about. I wish all textbooks were this complete, concise and clear. I'm now looking for volume 2.